Crystal is managed memory, C++ isn't. C++ gives a level of control and performance that Crystal, Nim, Java, Common-Lisp don't, even if they're quite close perf

Crystal is managed memory, C++ isn't. C++ gives a level of control and performance that Crystal, Nim, Java, Common-Lisp don't, even if they're quite close performance-wise. Only Rust (and maybe Zig) truly compete with C++. The rest compete with Java.